Eco-friendly piassava fiber reinforced composite for high performance coating application

2020 ◽  
Vol 12 (4) ◽  
pp. 118-132
Author(s):  
Juliana Peixoto Rufino Gazem de Carvalho ◽  
Felipe Perissé Duarte Lopes ◽  
Noan Tonini Simonassi ◽  
Sérgio Neves Monteiro ◽  
Eduardo Atem de Carvalho ◽  
...  
JOM ◽  
2018 ◽  
Vol 70 (10) ◽  
pp. 1958-1964 ◽  
Author(s):  
Noan Tonini Simonassi ◽  
Fabio Oliveira Braga ◽  
Sergio Neves Monteiro

Author(s):  
Daniel Chung ◽  
◽  
Kihong Ku ◽  

Composite materials have been explored in architecture for their high performance characteristics that allow customization of functional properties of lightness, strength, stiffness and fracture toughness. Particularly, engineering advancements and better understanding of fiber composites have resulted in growing applications for architectural structures and envelopes. As most new developments in material fabrication start outside the realm of architecture such as in automobile and aeronautical industries, there is need to advance knowledge in architectural design to take advantage of new fabrication technologies. The authors introduce results of new digitally driven fabrication methods for fiber-reinforced composite sandwich panels for complex shaped buildings. This presentation discussed the material properties, manufacturing methods and fabrication techniques needed to develop a proof of concept system using off-the-shelf production technology that ultimately can be packaged into a mobile containerized facility for on-site panel production. The researchers conducted experiments focusing on developing a digitally controlled deformable mold to create composite relief structures for highly customized geometrical façade components. Research findings of production materials, fabrication methods and assembly techniques, are discussed to offer insights into novel opportunities for architectural composite panel fabrication and commercialization.


2021 ◽  
Vol 921 (1) ◽  
pp. 012080
Author(s):  
M R Fatriady ◽  
E Aprianti ◽  
B D Pamungkas

Abstract Composite Cement (ECC) addresses a special type of high performance fiber reinforced composite cement with high tensile ductility. Fibers have been used to increase the toughness of quasi-brittle cement-based materials. As a result of its ability to produce high tensile ductility, ECC originally designed its strain-hardening behavior using a micromechanical concept, so that over-tensile strain capacity could be achieved in excess of 2% through multiple cracks. This research method is carried out by means of laboratory testing in accordance with data from literature studies both Indonesian SK SNI Standards and foreign standards, namely ASTM. The method applied in this research is an experimental method. The independent variable in this study is the reinforcement with the addition of fiber to the PVA ECC material mix, while the dependent variable in this study is the compressive strength value and the magnitude of the elastic modulus of the PVA ECC material. The results of the tensile strength of the ECC PVA material obtained on average at the age of 7, 14 and 28 days were 3.108 MPa, 3.547 MPa and 4.34 MPa, respectively. The tensile strength of the ECC PVA material increases with age. The average modulus of elasticity of PVA ECC material obtained at the age of 7, 14 and 28 days was 18763.02 MPa, 20788.81 MPa and 21060.03 MPa, respectively. Based on the modulus of elasticity, it also increases with the increase in compressive strength.


Materials ◽  
2019 ◽  
Vol 12 (24) ◽  
pp. 4159 ◽  
Author(s):  
Nasuha Md Zin ◽  
Amin Al-Fakih ◽  
Ehsan Nikbakht ◽  
Wee Teo ◽  
Mahmoud Anwar Gad

An experimental study is conducted to determine the influence of secondary reinforcement on the behaviour of corbels fabricated with three different types of high-performance fiber-reinforced cementitious composites, including engineered cementitious concrete (ECC); high-performance steel fiber-reinforced composite (HPSFRC); and hybrid fiber-reinforced composite (HyFRC). Two shear span-to-depth ratios (a/d = 0.75 and 1.0) are explored. The mechanical properties of the composites in terms of tensile, compressive, and flexural strengths are investigated. Next, the structural behaviour of the high-performance cementitious composite corbels in terms of ultimate load capacity, ductility, and failure modes under the three-point bending test are investigated. The secondary reinforcement is proven to significantly affect stiffness and ultimately load capacity of all three high-performance composite corbels with an aspect ratio of 0.75. However, the secondary reinforcement was more impactful for the HPSFRC corbels, with 51% increase of ultimate strength. Moreover, in terms of damage, fewer cracks occurred in ECC corbels. HPSFRC corbels displayed the highest level of ductility and deformation capacity compared to the other specimens. The results were comparatively analyzed against the predicted results using truss and plastic truss models which provided relatively reliable shear strength.


2017 ◽  
Vol 56 (10) ◽  
pp. 2673-2679 ◽  
Author(s):  
Johannes Möller ◽  
Christopher N. Kuncho ◽  
Daniel F. Schmidt ◽  
Emmanuelle Reynaud

2010 ◽  
Vol 38 (4) ◽  
pp. 286-307
Author(s):  
Carey F. Childers

Abstract Tires are fabricated using single ply fiber reinforced composite materials, which consist of a set of aligned stiff fibers of steel material embedded in a softer matrix of rubber material. The main goal is to develop a mathematical model to determine the local stress and strain fields for this isotropic fiber and matrix separated by a linearly graded transition zone. This model will then yield expressions for the internal stress and strain fields surrounding a single fiber. The fields will be obtained when radial, axial, and shear loads are applied. The composite is then homogenized to determine its effective mechanical properties—elastic moduli, Poisson ratios, and shear moduli. The model allows for analysis of how composites interact in order to design composites which gain full advantage of their properties.


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